Mars Exploration Rover Opportunity

This composite image provided by NASA shows before-and-after images taken by the Opportunity rover on Mars of a patch of ground taken on Dec. 26, 2013, showing the "Pinnacle Island" rock.
AP
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A photo composed of nearly 900 images taken by the rover Curiosity shows a section of Gale Crater near the equator of Mars. The rovers are continuing to work through the U.S. government shutdown.
NASA/AP
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